The present disclosure relates to an insert and system of installing the same. The insert includes a tapered core and a cylinder. The core releasably secures to an installation device which includes a depth stop or a depth control to control the installation depth of the insert. The insert may be provided in a tray that allows for easier handling of the inserts and installation thereof in installation holes, for example in a hydraulic manifold. In some cases, the core includes a threaded hole to releasably secure the insert to the installation device, thus allowing the installation device to pull the core into the cylinder. The core and cylinder may be made of metallic materials such as steels, steel alloys and others. In some cases the insert can withstand blow out pressures of 40,000 psi or higher.

A valve operating device includes first and second pivots, a first arm portion extending therebetween, a second arm portion extending from the second pivot, a valve operating machine on the second arm portion, and an actuator connected between the first pivot and the first arm portion. The first arm portion can rotate around a first vertical axis defined by the first pivot and can pivot around a horizontal axis defined by the first pivot. The second arm portion can rotate around a second vertical axis defined by the second pivot. The actuator causes the first and second arm portions, the second pivot, and the valve operating machine to pivot upward and downward relative to the first pivot around the horizontal axis.

Embodiments of a polyethylene (“PE”) pipe servicing system of this disclosure may include a fusible PE fitting (F) providing a branch connection to a PE pipeline section or run (P), a valve (10) connected to the fitting and including quick connect/disconnect means, and a machine connectable to the valve including complementary quick connect/disconnect means. The quick connect means provide for full scope of operation, including cleaning, fusion, cool down, hot tap, plugging, and completion. No squeezing is used. The quick connect/disconnect means may include a first portion 20 of a cam profile and a second portion 40 of the cam profile complementary to that of the first. The machine may be a drilling or hot tapping machine (30T), a plugging machine (30P), or a completion machine (30C), and their associated tools. The valve and machine are more lightweight and faster and easier to use than the prior art.

Embodiments of the innovation relate to a seal plug which includes a plug body having a first sealing portion and a second sealing portion; the first sealing portion having a first sealing portion diameter and defining a radial channel having a first shoulder and a second shoulder, the radial channel having a radial channel diameter that is smaller than the first sealing portion diameter; a set of threads disposed about an outer periphery of the second sealing portion, the set of threads defining a major diameter and a minor diameter; and an o-ring disposed within the radial channel defined by the first sealing portion and between the first shoulder and the second shoulder, the o-ring having an outer diameter that is smaller than the minor diameter of the set of threads of the second sealing portion.

The present disclosure relates to an insert and system of installing the same. The insert includes a tapered core and a cylinder. The core releasably secures to an installation device which includes a depth stop or a depth control to control the installation depth of the insert. The insert may be provided in a tray that allows for easier handling of the inserts and installation thereof in installation holes, for example in a hydraulic manifold. In some cases, the core includes a threaded hole to releasably secure the insert to the installation device, thus allowing the installation device to pull the core into the cylinder. The core and cylinder may be made of metallic materials such as steels, steel alloys and others. In some cases the insert can withstand blow out pressures of 40,000 psi or higher.

The present disclosure relates to an insert and system of installing the same. The insert includes a tapered core and a cylinder. The core releasably secures to an installation device which includes a depth stop or a depth control to control the installation depth of the insert. The insert may be provided in a tray that allows for easier handling of the inserts and installation thereof in installation holes, for example in a hydraulic manifold. In some cases, the core includes a threaded hole to releasably secure the insert to the installation device, thus allowing the installation device to pull the core into the cylinder. The core and cylinder may be made of metallic materials such as steels, steel alloys and others. In some cases the insert can withstand blow out pressures of 40,000 psi or higher.

A sealing plug comprises the combination of a stem and sleeve, in which the stem is designed to have an external taper such that, on installation of the plug by a setting tool, sleeve material flows into a gap between the sleeve and taper to assist with locking the sleeve and stem together. Furthermore, the tool nose piece has a conical taper designed to cause sleeve material to flow, initially on installation, radially outward to effect locking of the plug into a blind hole into which it is being installed.

An in-tube fixing assembly includes a primary tube having an inner space and an inner wall; a fixing member inserted into the inner space from an opened end of the primary tube and provided with at least one through hole at an appropriate position; and at least one screw member, a diameter of the screw member gradually decreasing from the operation end to the insertion end, wherein the screw member is inserted into the through hole in a direction from the opened end to the inner space of the primary tube, the insertion end of the screw member abuts against the inner wall of the primary tube to form a small recess thereon that are complementary to a shape of the screw member.

The present invention includes: a first part (11) which has a hollow cylindrical shape and circumscribes or is inscribed in a pipe (26); and a second part (15) which has a cylindrical shape and circumscribes or is inscribed in the first part (11), wherein inclined portions (23), which have inclination angles that can hinder the second part (15) from retreating from the first part (11), are formed between the first part (11) and the second part (15) so as to correspond to each other. That is, when a pipe sealing device is mounted to the pipe and the second part (15) is retreated from the pipe (26), the inclined portion (23) of the first part (11) and the second part (15) push against each other, the first part (11) is pressed against and fixed to the pipe, and the second part (15) can no longer retreat from a limited line due to inclination angles. Connecting or closing pipes typically involves making screws or welding, and thus requires many tools and consumes much time. In contrast, such work can be conveniently performed using the pipe sealing device of the present invention. Also, a fluid inlet and outlet portion (43) is provided, and thus a pipe sealing test can be easily performed for each section.

Disclosed is a breather valve for controlling a pressure of a transfer channel of a valve assembly. The valve assembly controls charging and discharging of hydrogen in a hydrogen fuel cell-based vehicle. The breather valve includes a vent ring movably received in a distal portion of the transfer channel and having a ventilation hole communicating with a main portion of the transfer channel; and a vent valve received in the distal portion of the transfer channel and screw-coupled to the transfer channel to open or close the ventilation hole.